Is temporary paralysis possible after having spinal injury?

Sometimes temporay: Sometimes injury causes spine "shock" or swelling and paralysis may resolve when it goes away. A little healing may occur even in severe cases and a cord only crushed a little may improve on its own or after decompression surgery of bone, ruptured disk tumor or whatever else might be crushing it. High dose steroids a given early give it a better chance. Rehabilitation also may help greatly.

Yes: Yes and a full recovery can be seen.